Chesepeake Light Craft (www.clcboats.com) has several different hull designs; the rounded hull Yare and Severn; flat bottomed Mill Creeks, multi-chined West Rivers and shallow V/hard chined Chesespeakes and North Bays. They also have quite a bit of technical information and a guide to choosing a boat that suits you. Lee works there, but doesn't like to toot his own horn (professional courtesy, you know).